I'm look for a switch that will activate 12 VOLTS dc for about 60 seconds then shut off. Here is my problem I have a Chrysler Sebring Convert. The seat belts are electric when you apply power the belts retract in and out ,when you shut the power off they lock. The belts are made to do this because seat belts are seat mounted. So I have to duplicate this function with some sort of timer. When I get in the car I need to activate the retractor so I can put the seat belt on . Then It needs to shut down the 12 volts to lock the belts. Any thoughts